Astrophysics section of arXiv, the premier collection of preprints in physics and related fields - The 1st place many experienced researchers go to keep up-to-date with new research. The service allows authorized users to post papers BEFORE the papers are published through the peer review review process.
The SAO/NASA Astrophysics Data System (ADS) is a Digital Library portal for researchers in Astronomy and Physics, operated by the Smithsonian Astrophysical Observatory (SAO) under a NASA cooperative agreement. The ADS maintains more than 8.7 million bibliographic records and full-text scans of astronomical literature.
Provides access to citations, full-text documents, and image and video files from scientific and technical information created or funded by NASA. Information types include: conference papers, images, journal articles, photos, meeting papers, movies, patents, and research reports.
A U.S. Government Document Depository Library for scientific and technical reports from several agencies and houses one of the most complete collections of NASA documents in the country, as well as reports from NASA's predecessor, NACA, dating back to 1915.
Provides access to abstracts and periodicals in science, engineering, and technology in full-text and image formats. Covers a wide range of topics from both physical and life science disciplines. Provides a full-text linking destination for ProQuest's versions of Applied science & technology abstracts and General science abstracts.
Abstract and citation database of peer-reviewed literature, with bibliometrics tools to track, analyze and visualize research. It contains over 22,000 titles from more than 5,000 publishers around the world, covering the fields of science, technology, medicine, social sciences, and Arts & Humanities. Scopus has 55 million records dating back to 1823, 84% of these contain references dating from 1996.
PhySH (Physics Subject Headings) is a physics classification scheme developed by the American Physical Society (APS) to organize journal, meeting, and other content by topic. PhySH is a fully open detailed classification scheme for physics. It was initially developed to meet the specific goals of the APS for journal, meeting, and other content; it is also available for use by the broader community. It has replaced PACS.
PACS, is no longer being updated as of 2010 and has been replaced by PhySH. The Physics and Astronomy Classification Scheme® (PACS®) is a hierarchical subject classification scheme designed to classify and categorize the literature of physics and astronomy.